All articles with 'IsOdd()' Tag
Looking up when the data won’t co-operate (case study)
![Looking up when the data won’t co-operate (case study)](https://img.chandoo.org/f/2d-lookup-problem-data-structure.png)
Occasionally we deal with data that is so uncooperative that we might as well give up and go back to calculators & ledger books.
Recently I found myself in such a situation and learned something new.
Introducing … data that won’t play nice
Drum roll please. Here is a data-set that I got from somewhere.
The problem – build a lookup formula
And the problem. Oh, simple. Write a lookup formula to find how many customer walk-ins we have on any given day.
But how?
Continue »![Formula Forensics 022. Sum the Odd Numbers between 1 and 100](https://chandoo.org/wp/wp-content/uploads/2012/05/FF22-Master.png)
How can we Add Up the Odd numbers between 1 and 100 ?
Continue »![Formula Forensics No. 005 – Zebras and Checker-Boards](https://chandoo.org/wp/wp-content/uploads/2011/12/Zebra_Sml.png)
Zebra Stripes and Checker Boards
This week in Formula Forensics I’m taking a break from Array Formulas to have a look at some Zebra Stripes and Checker Boards.
No, I haven’t gone crazy, although some may argue that point.
More specifically were going to take a look at, Zebra Stripes and Checker-Board Conditional Formatting.
Continue »